Invention Grant
- Patent Title: Shovel
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Application No.: US14664133Application Date: 2015-03-20
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Publication No.: US10024031B2Publication Date: 2018-07-17
- Inventor: Makoto Yanagisawa
- Applicant: Sumitomo Heavy Industries, Ltd.
- Applicant Address: JP Tokyo
- Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
- Current Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Fenwick & West LLP
- Priority: JP2014-074741 20140331
- Main IPC: E02F9/12
- IPC: E02F9/12 ; E02F3/32 ; E02F3/36 ; E02F9/20 ; E02F9/22 ; E02F9/26

Abstract:
A shovel includes a lower traveling body; an upper swivel body that is mounted on the lower traveling body; an electric motor for swiveling that drives the upper swivel body in a swiveling manner; a mechanical brake that holds a swiveling stopped state of the upper swivel body; an engine; a hydraulic pump that discharges hydraulic oil with the power of the engine; a hydraulic actuator that is driven by the hydraulic oil discharged by the hydraulic pump; a pressure detecting unit that detects the discharge pressure of the hydraulic pump; and a control device that controls the mechanical brake on the basis of information on the discharge pressure detected by the pressure detecting unit.
Public/Granted literature
- US20150275478A1 SHOVEL Public/Granted day:2015-10-01
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